Implementing Cisco IP Switched Networks (CCNP SWITCH, legacy) — Question 122

Which statement is true when UDLD is configured on a link and the link is determined to be unidirectional?

Answer options

• A. The port remains up for a configured time interval and then error disables if the link remains unidirectional.
• B. LLDP is enabled on the port.
• C. The port sends a log message to the console.
• D. The port is disabled immediately.

Correct answer: D

Explanation

When UDLD detects a unidirectional link, the port is promptly disabled to prevent any network issues. This is crucial for maintaining network integrity, unlike the other options which suggest delays or irrelevant actions that do not align with UDLD's purpose.